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Difficulty: EasyRhetorical Structure and Sentence Function

Historians studying medieval agricultural techniques have traditionally argued that the adoption of the heavy plow in northern Europe served as the primary catalyst for economic expansion during the High Middle Ages. By turning the rich, dense clay soils of the region more effectively than the lighter scratch plow, the heavy plow purportedly raised crop yields significantly. However, recent quantitative re-evaluations of estate records suggest that this technological innovation alone cannot account for the observed demographic growth. Rather, the widespread implementation of three-field crop rotation, which increased arable land utilization and restored soil fertility through legumes, played a far more decisive role in sustaining population increases.

Which of the following best describes the primary function of the sentence 'However, recent quantitative re-evaluations of estate records suggest that this technological innovation alone cannot account for the observed demographic growth'?

  1. It introduces a qualification to a prevailing historical claim presented earlier in the passage.Answer
  2. B
    It presents empirical evidence that directly supports the traditional view of medieval agricultural growth.
  3. C
    It summarizes the main conclusion regarding the definitive superiority of crop rotation over all other historical innovations.
  4. D
    It strongly denounces early historians for fabricating historical records regarding medieval farming techniques.
  5. E
    It proves that demographic expansion during the High Middle Ages was entirely independent of agricultural productivity.

Answer

The sentence serves primarily to introduce a qualification to a prevailing historical claim presented earlier in the passage.
The sentence begins with the contrast signal 'However' and asserts that technological innovation (the heavy plow) alone cannot account for demographic growth. This directly qualifies the traditional argument introduced in the first sentence that credited the heavy plow as the primary catalyst.

Step-by-Step Solution

1
Identify the preceding context and thesis argument.
The first two sentences outline the traditional historical view that the heavy plow was the primary catalyst for economic expansion.
Understanding the preceding claim is necessary to analyze the structural purpose of the target sentence.
2
Analyze structural pivot signals and function of the target sentence.
The word 'However' signals a structural contrast, introducing new evidence indicating that the heavy plow alone does not fully explain demographic growth.
Evaluating transition words reveals how the sentence modifies or qualifies the prior assertion.
3
Match the sentence function to the correct option.
The sentence qualifies (limits the explanatory scope of) the traditional belief described earlier.
A qualification limits or provides nuance to a prior claim without necessarily refuting it entirely.

Key Concept

Identifying rhetorical function of transition sentences and qualifying statements in academic passages.
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Topics

Rhetorical Structure and Sentence Function

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